Chapter 14 Fault Codes and DescriptionsCP2000 
 
14-51
ID*  Display on LCD Keypad  Fault Name  Fault Descriptions 
143 
 
Auto-tune error 2 
(AUE2) 
Motor  phase  loss  error  when  motor  parameter 
automatically detects 
Action and Reset 
Action level  Software detection 
Action time  Immediately act 
Fault treatment parameter  N/A 
Reset method  Manual reset 
Reset condition  Immediately reset 
Record  Yes 
Cause  Corrective Actions 
Incorrect motor wiring  Wire the motor correctly. 
Motor error  Check if the motor works normally. 
The electromagnetic contactor is 
used as an open state on the 
output side of the drive (U/V/W). 
Verify that the three-phases of the electromagnetic valve are all closed. 
Motor U/V/W wire error  Check if the wires are broken. 
 
ID*  Display on LCD Keypad  Fault Name  Fault Descriptions 
144 
 
Auto-tune error 3 
(AUE3) 
No  load  current  I
0
  measurement  error  when  motor 
parameter automatically detects. 
Action and Reset 
Action level  Software detection 
Action time  Immediately act 
Fault treatment parameter  N/A 
Reset method  Manual reset 
Reset condition  Immediately reset 
Record  Yes 
Cause  Corrective Actions 
Incorrect settings for the motor 
parameter (rated current) 
Check the settings for Pr.05-01 / Pr.05-13 / Pr.05-34. 
Motor error  Check if the motor works normally. 
 
ID*  Display on LCD Keypad  Fault Name  Fault Descriptions 
148 
 
Auto-tune error 4 
(AUE4) 
Leakage inductance Lsigma measurement error when 
motor parameter automatically detects. 
Action and Reset 
Action level  Software detection 
Action time  Immediately act 
Fault treatment parameter  N/A 
Reset method  Manual reset 
Reset condition  Immediately reset 
Record  Yes 
Cause  Corrective Actions 
Motor error  Check if the motor works normally. 
Incorrect setting of motor 
parameters (base frequency) 
Check the setting of Pr.01-01.